2 glands that produce sperm cells and testosterone, begining during puberty
microscopic cells that carry either X chromosomes (Female Characteristics) or Y chromosomes (Male Characteristics). Both the sperm cells and the egg cells usually carry 23 chromosomes each
hormone responsible for male characteristics
skin sac containing testicles
2 tubes that carry sperm from the testicles to the semen
cut and tie vas deferens to stop the release of sperm during an ejaculation; sterile
combines with sperm and semen, connected by the vas deferens
thick, sticky fluid that travels out the urethra during an ejaculation
helps males to ejaculate and urinate; adds fluid to the semen
tube that carries urine from the bladder through the penis, or semen through the penis. opening in the penis
male organ that releases urine or semen
skin that covers the end of the penis
removal of the foreskin
when the penis becomes hard and raised
releasing of semen from the penis
wet dream (nocturnal emmision)
involuntary ejaculation during sleep
sexually pleasing oneself
unable to maintain an erection or have an ejaculation
unable to produce sperm
medicine that treats impotence
doctor specializing in genital problems
removal of the testicles
a person who has not had sexual intercourse
blood test for prostate cancer
pleasurable sexual feeling
skin condition due to oils, bacteria, dirt, and hormones
doctor specializing in skin problems
involuntary releasing of semen before a boy feels it
opening for soslid waste
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